logistic and OLS regressions to measure the effect of star physicians and star hospitals on the diffusion of an innovation in … physician level. Compared to hospitals with no star physicians (11% adoption rate), those with star physicians on staff show a … physician level, the empirical results indicate that star physicians exert positive asymmetric influence on the adoption and …

Several trade-based measures of product variety have recently been used implicitly to represent states of technology …, promoting long-run growth. In this paper, we define the state of technology as the range of specialised production processes and … propose the variety of capital goods available for production as a direct measure of technology. Within a simple growth …